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Chronology of Holocene storm events along the European Atlantic coast: New data from the Island of Yeu, France

Pierre Pouzet 1 Mohamed Maanan 1 Natalia Piotrowska 2 Agnès Baltzer 3 Pierre Stéphan 4 Marc Robin 3
3 LETG - Nantes - Littoral, Environnement, Télédétection, Géomatique
CNRS - Centre National de la Recherche Scientifique : UMR6554, EPHE - École pratique des hautes études, UNICAEN - Université de Caen Normandie, UBO - Université de Brest, UR2 - Université de Rennes 2, IGARUN - Institut de Géographie et d'Aménagement
4 LETG - Brest - Littoral, Environnement, Télédétection, Géomatique
LETG - Littoral, Environnement, Télédétection, Géomatique UMR 6554
Abstract : This paper reviews the reconstruction of European Atlantic storm events with the contribution of a new stormy reconstruction in its central part. Three marsh environments on the island of Yeu were chosen to identify disturbing storm events from the Mid- to Late Holocene with vibracore sampling, radiocarbon dating and sedimentary analysis. Nine probable intervals of high energy deposition in these low-transport-activity environments are estimated: 600–500, near 1590, 2100–1950, 2850–2350, 3500–3270, 5400–5370, 6650–6510, near 7000 and between 7670 and 7470 calibrated years before present (cal y BP). By comparison with sedimentological paleostorm studies, we confirm six European Atlantic storm events estimated at near 600–300, 1700–1100, 2900–2500, 3500–3300, 5500–5100 and 7700–7100 cal y BP, corresponding to worldwide Holocene cooling climatic periods. A comparison with other storminess reviews of worldwide main stormy coasts shows that Holocene storms can increase during global cooling periods in the northern hemisphere.
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Pierre Pouzet, Mohamed Maanan, Natalia Piotrowska, Agnès Baltzer, Pierre Stéphan, et al.. Chronology of Holocene storm events along the European Atlantic coast: New data from the Island of Yeu, France. Progress in Physical Geography, SAGE Publications, 2018, 42 (4), pp.431-450. ⟨10.1177/0309133318776500⟩. ⟨hal-01811916⟩

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